Results 71 to 80 of about 1,481 (212)

Aerodynamic design optimization using flow feature parameterization

, 2007
Design optimization methods using high-fidelity computational fluid dynamics simulations are becoming increasingly popular in the area of aerodynamic design, sustaining the desire to make these methods more computationally efficient.
Barrett, Thomas Robin
core  

Gradient descent-type methods : Background and simple unified convergence analysis

In this book chapter, we briefly describe the main components that constitute the gradient descent method and its accelerated and stochastic variants.
Tran-Dinh, Quoc, van Dijk, Marten, Tran-Dinh, Q. (Quoc), Dijk, M.E. (Marten) van   +3 more
core   +1 more source

Crack inhibition and crystallographic texture control in an additively manufactured IN738LC Ni-based superalloy

Journal of Materials Research and Technology
The additive manufacturing of directionally solidified Ni-based superalloys remains a significant challenge due to the formation of stray equiaxed grains and their high susceptibility to cracking, particularly for high-volume γ´-type Ni-based superalloys.
Fangxian Zhang, Liping Zhou, Xinliang Xie, Zhenbo Zhang, Qi Chao, Guohua Fan   +5 more
doaj   +1 more source

Dynamics of variable-viscosity nanofluid flow with heat transfer in a flexible vertical tube under propagating waves

Results in Physics, 2017
Background and objectives: The present investigation addresses nanofluid flow and heat transfer in a vertical tube with temperature-dependent viscosity. A Tiwari-Das type formulation is employed for the nanofluid with a viscosity modification.
A. Bintul Huda, Noreen Sher Akbar, O. Anwar Beg, M. Yaqub Khan   +3 more
doaj   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

Molecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau, Leonor Garcia, Hugo Arnold, Antonija Hanžek, Maialen Arrieta, Laurent R Gauthier, Christine Granotier‐Beckers, François D Boussin, Amaury Herbet, Marie Hautière, Valentin Asei‐Ceschino, Clémentin Jacques, Laura Brard, Thomas Harnois, Valérie Coronas, Bruno Constantin, Aurélien Chatelier, Jean Chemin, Serge Urbach, Martial Seveno, Szimonetta Hideg, Chantal Ripoll, Kasandra Aguilar‐Cázarez, Min Zheng, Guo‐Hao Huang, Sheng‐Qing Lv, Lei Zhang, Philippe Rondard, Laurent Prezeau, Jean‐Philippe Pin, Hugues Duffau, Luc Bauchet, Valérie Rigau, Franck Denat, Charles Truillet, Didier Boquet, Jean‐Philippe Hugnot   +36 more
wiley   +1 more source

NOVEL NUMERICAL PROCEDURES FOR LIMIT ANALYSIS OF STRUCTURES: MESH-FREE METHODS AND MATHEMATICAL PROGRAMMING [PDF]

, 2010
Current research in the field of limit analysis is focussing on the development of numerical tools which are sufficiently efficient and robust to be used in engineering practice.
Le, Canh
core  

Distributed Newton-Type Methods with Communication Compression and Bernoulli Aggregation

, 2023
Despite their high computation and communication costs, Newton-type methods remain an appealing option for distributed training due to their robustness against ill-conditioned convex problems.
Qian, Xun, Richtarik, Peter, Islamov, Rustem, Hanzely, Slavomir, Safaryan, Mher   +4 more
core  

Variable Selection and Model Choice in Structured Survival Models [PDF]

, 2008
In many situations, medical applications ask for flexible survival models that allow to extend the classical Cox-model via the inclusion of time-varying and nonparametric effects.
Hothorn, Torsten, Kneib, Thomas, Hofner, Benjamin   +2 more
core   +1 more source

Hybrid FRP strengthening of reinforced concrete deep beams: Experimental, theoretical and machine learning-based study

Case Studies in Construction Materials
This paper presents experimental findings from testing seventeen reinforced concrete deep beams, categorized into four groups based on the presence and type of openings.
Phromphat Thansirichaisree, Qudeer Hussain, Mingliang Zhou, Ali Ejaz, Shabbir Ali Talpur, Panumas Saingam   +5 more
doaj   +1 more source

Improvement Methods for Reduction of the High Stress of Ultra-High Asphalt Concrete Core Dams

Applied Sciences, 2019
With the rapid development of asphalt concrete core rockfill dams (ACCRDs), the construction of ultra-high asphalt concrete core rockfill dams (UACCRDs) has been improved significantly. However, the security problems of asphalt concrete core (ACC) become
Jun Gao, Faning Dang, Zongyuan Ma, Yi Xue, Jie Ren   +4 more
doaj   +1 more source